| PartNumber | ATXMEGA128A1-CU | ATXMEGA128A1-C7U | ATXMEGA128A1-C7UR |
| Description | 8-bit Microcontrollers - MCU 8/16 bit 1.6V-3.6V 128K + 8K Flash | 8-bit Microcontrollers - MCU 128K FLASH;2K EE;8K SRAM;1.6-3.6V;32MHz | 8-bit Microcontrollers - MCU 100BGA, IT, Grn 1.6-3.6V |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | BGA-100 | VFBGA-100 | VFBGA-100 |
| Series | XMEGA A1 | XMEGA A1 | XMEGA A1 |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit/16 bit | 8 bit/16 bit | 8 bit/16 bit |
| Maximum Clock Frequency | 32 MHz | 32 MHz | - |
| Program Memory Size | 128 kB | 128 kB | - |
| Data RAM Size | 8 kB | 8 kB | - |
| ADC Resolution | 12 bit | - | - |
| Number of I/Os | 78 I/O | 78 I/O | - |
| Operating Supply Voltage | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Tray | Reel |
| Height | 0.8 mm | 0.65 mm (Min) | - |
| Length | 9 mm | 7 mm | - |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | - |
| Width | 9 mm | 7 mm | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | SRAM | - |
| Data ROM Size | 2 kB | - | - |
| Data ROM Type | EEPROM | - | - |
| Interface Type | SPI, TWI, USART | SPI, TWI, USART | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 8 | - | - |
| Number of Timers/Counters | 8 Timer | 8 Timer | - |
| Processor Series | AVR XMEGA | AVR XMEGA | AVR XMEGA |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 250 | 260 | 4000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Tradename | XMEGA | XMEGA | XMEGA |